Hygrothermal effects on dynamic mechanical snalysis and fracture behavior of polymeric composites

Detalhes bibliográficos
Autor(a) principal: Costa,Michelle Leali
Data de Publicação: 2005
Outros Autores: Almeida,Sérgio Frascino Muller de, Rezende,Mirabel Cerqueira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000300019
Resumo: Polymer composites used above their glass transition temperatures Tg present a substantial degradation of physical properties; therefore a material's glass transition temperature and its change with moisture absorption are of practical importance. Little attention has been paid to the role of the adhesive bonding between the reinforcing fiber and matrix, particularly for BMI matrix. In this work the effect of moisture on the dynamic mechanical behavior and the fiber/matrix interface was investigated. Two systems were evaluated: carbon fabric/epoxy and carbon fabric/bismaleimide laminates. The results demonstrated that the moisture absorbed by the laminates causes either reversible or irreversible plasticization of the matrix. The humidity combined with the temperature effects may cause significant changes in the Tg matrix and toughness affecting the laminate strength. Moisture absorption was correlated to the fracture mode of the laminate demonstrating the deleterious effect of moisture on the interface. This leads to debonding between fiber and matrix. This behavior was investigated by scanning electron microscopy and dynamic mechanical analysis.
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spelling Hygrothermal effects on dynamic mechanical snalysis and fracture behavior of polymeric compositespolymeric compositesdynamic mechanical propertiesglass transition temperatureinterfacePolymer composites used above their glass transition temperatures Tg present a substantial degradation of physical properties; therefore a material's glass transition temperature and its change with moisture absorption are of practical importance. Little attention has been paid to the role of the adhesive bonding between the reinforcing fiber and matrix, particularly for BMI matrix. In this work the effect of moisture on the dynamic mechanical behavior and the fiber/matrix interface was investigated. Two systems were evaluated: carbon fabric/epoxy and carbon fabric/bismaleimide laminates. The results demonstrated that the moisture absorbed by the laminates causes either reversible or irreversible plasticization of the matrix. The humidity combined with the temperature effects may cause significant changes in the Tg matrix and toughness affecting the laminate strength. Moisture absorption was correlated to the fracture mode of the laminate demonstrating the deleterious effect of moisture on the interface. This leads to debonding between fiber and matrix. This behavior was investigated by scanning electron microscopy and dynamic mechanical analysis.ABM, ABC, ABPol2005-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000300019Materials Research v.8 n.3 2005reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392005000300019info:eu-repo/semantics/openAccessCosta,Michelle LealiAlmeida,Sérgio Frascino Muller deRezende,Mirabel Cerqueiraeng2005-10-10T00:00:00Zoai:scielo:S1516-14392005000300019Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2005-10-10T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Hygrothermal effects on dynamic mechanical snalysis and fracture behavior of polymeric composites
title Hygrothermal effects on dynamic mechanical snalysis and fracture behavior of polymeric composites
spellingShingle Hygrothermal effects on dynamic mechanical snalysis and fracture behavior of polymeric composites
Costa,Michelle Leali
polymeric composites
dynamic mechanical properties
glass transition temperature
interface
title_short Hygrothermal effects on dynamic mechanical snalysis and fracture behavior of polymeric composites
title_full Hygrothermal effects on dynamic mechanical snalysis and fracture behavior of polymeric composites
title_fullStr Hygrothermal effects on dynamic mechanical snalysis and fracture behavior of polymeric composites
title_full_unstemmed Hygrothermal effects on dynamic mechanical snalysis and fracture behavior of polymeric composites
title_sort Hygrothermal effects on dynamic mechanical snalysis and fracture behavior of polymeric composites
author Costa,Michelle Leali
author_facet Costa,Michelle Leali
Almeida,Sérgio Frascino Muller de
Rezende,Mirabel Cerqueira
author_role author
author2 Almeida,Sérgio Frascino Muller de
Rezende,Mirabel Cerqueira
author2_role author
author
dc.contributor.author.fl_str_mv Costa,Michelle Leali
Almeida,Sérgio Frascino Muller de
Rezende,Mirabel Cerqueira
dc.subject.por.fl_str_mv polymeric composites
dynamic mechanical properties
glass transition temperature
interface
topic polymeric composites
dynamic mechanical properties
glass transition temperature
interface
description Polymer composites used above their glass transition temperatures Tg present a substantial degradation of physical properties; therefore a material's glass transition temperature and its change with moisture absorption are of practical importance. Little attention has been paid to the role of the adhesive bonding between the reinforcing fiber and matrix, particularly for BMI matrix. In this work the effect of moisture on the dynamic mechanical behavior and the fiber/matrix interface was investigated. Two systems were evaluated: carbon fabric/epoxy and carbon fabric/bismaleimide laminates. The results demonstrated that the moisture absorbed by the laminates causes either reversible or irreversible plasticization of the matrix. The humidity combined with the temperature effects may cause significant changes in the Tg matrix and toughness affecting the laminate strength. Moisture absorption was correlated to the fracture mode of the laminate demonstrating the deleterious effect of moisture on the interface. This leads to debonding between fiber and matrix. This behavior was investigated by scanning electron microscopy and dynamic mechanical analysis.
publishDate 2005
dc.date.none.fl_str_mv 2005-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000300019
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000300019
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392005000300019
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.8 n.3 2005
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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